Hair clipper



Jan. 1, 1924 I s. P. JONES HAIR CLIPPER Filed Nov. 17 1923 2 Sheets-Sheet 1 Jan. 1, 1924 S. P; JONES HAIR CLIPPER I 2 Sheets-Sheet 2 Filed Nov. 7, 1925 INN i/Ii

r- I I I I I I I I I I l I Patented Jan.1,, 1924.

\ H M1 2" UNITED STA ES PATENT OFFICE.

mm r. 30838, or wnco, waxes, assrenoa To run JONES nmc'rnrc' coaromnon, or trace, TEXAS.

HAIR CLIPPER.

Application am November 17, 1923. Serial 150. 075,253;

To all whom it may congem:

Be it known that I, Smm P. Jonas, citizen of the United States of America, reading at Waco, in the county of McLennan and e State of Texas, have invented certain new and useful Improvements in Hair Clippers, of whichthe following is a specification.

This invention relates to new and improvements in hair clippers.

The object of the invention is to reduce a motor driven hair clipper that f operate with substantially no vibration, which will not heat excessively convenient to hold and operate.

A particular object of the invention is to provide a heel roller for the clipper head which may be adjusted and used as a support for trimmin .hair at various lengths, and whereby the barber will be enabled to easily 2o swing the blades in an arcwhile traversing theclip er over the hair of the customer.

Anot er object is to provide a water-tight device which maybe cleansed and sterilized and immersed in water and a the latter ex-- eluded from the interior parts.

An important object resides in means for tensioningthe shuttle blade which eliminates the compression plate, now commonly used; and reduces wear of the blades.

so A further object is to provide a head shaped and disposed to be conveniently, com-' fortably and restfully held in the hand, together with a handle from which the head is ofiset'laterally and which \handle is of such diameter as to permit the fingers to be engagedthere around inwardly of the heel roller, thus not interfe construction designs to carry out the invention will be hereinafterdescribed together with other features .of the invention.

The invention will be more readily understood from a reading of the following specification and by reference to the accompanying drawings, in which an example of the invention is shown, and wherein:

Fig. 1 is a side elevation of a hair clipper constructed in accordance ,with my invention Fig. 2 is a plan view of the same, 7 Fig. 3 is an underside view of the head, Fig. 4 is a front elevation,

Fig. 5 is a rear elevation, Fig. 6 is a longitudinal sectional view taken on the line 6-6 of Fig. 2,

andwhich be more Y with close work.

manner.

.with trunnions 24 havln'g bearings Fig. 7 is a transverse sectional view on the line 77 of Fig. 1, the heel roller omitted,

Fig. 8 1s a cross sectional view on the line 8-8 of Fig. 1,

Fig. v is a transverse sectional view on the hue 9-9 of Fig. 1,

Fig. 10 is a transverse sectional view on v the line 10-10 of Fig, 1, and

Fig. 11 is a similar view on the line 11-41 0f Fig. 1. v

.In the drawings the numeral 10 designates a transverse head fmmthe upper central portidn of which a tubular handle 11 extends rearwardly. The head has a longitudinal bore 12 continuous with the bore of the handle; The bore 12 is intersected blya transverse cylindrical chamber 13 in t e head below the bore. In the. handle a pair of spaced bushings 14 are mounted, one intermediate the ends of the handle and the other extending into the bore 12 'Each bushing has circumferential grease grooves or pockets 15 spaced apart by a central retaming groove 16 receiving a set screw 17. The set screw not only holds the bushing against longitudinal displacement, but also holds itagainst rotation. A drive shaft 18 is mounted inthe bushing and has collars 19 bearing against the ad acent ends there of, whereby theend play .of the shaft is taken up. As is shown n Figs-6 and 10 the bushings have radial ports 15' connecting the grease and after suflicient operation to heat the cup-grease in the said grooves, said grease will flow through the ports and lubricate the shaft in a very efliclent and economical A worm 20is positioned on the shaft in the bore 12 and'has its forward end supported in a screw plug 21 closing the forward end of said bore. Within the chamber 13 is disposed a worm wheel 22 and a cam wheel 23 fastened to her and 111' screw caps 25 closing the ends of said chamber.

'The worm' revolves the wheel 22 which in turn revolves the cam wheel. A transverse bore 26 below the chamber and parallel thereto is provided in the head for receiving a cylindrical shuttle bar 27. A vertical pin 28 mountedin thebar provides a spindle or an elongated roller 29 extending through a slot 30 between the chamber and the bore.

grooves 15 with their bores provided a rear edge portions contac The upperend of the roller enga es in the groove of the cam wheel 23 an acts reciprocate the shuttle bar when the cam 1s revolved. Access to the pin is had through a slot 31 in the bottom of the bore. This slot is closed by a transverse slide strip 32 mounted in the bottom of the head. Screw plu s 33 close the ends of the bore 26.

'fiie forward underside of the head is 1nclined upwardly and a toothed cutter blade 34 is fastened thereon by screws 35. A toothed shuttle blade 36 is mounted on the blade 34, both blades being dished in the usual manner, so that onl their teeth and t The head has on overhanging lip 37 cut back over the blade 34 to receive the blade 36. In order to hold the teeth of the two blades in contact, I provide a bow or arched leaf spring 58 seated in a recess 39 in the underside of the Ii 37 (Figs. 6 and 9) havin its ends seate on the shuttle blade. tension thumb screw 40 mounted in the lip bears on the center of the spring and may be adjusted to reduce or increase the tension of the spring, whereby the proper contact for smooth cutting, is had between the blades. This is an improvement over the usual tension plate which has a comparatively thin edge bearing on the shuttle blade and this results in undue wear. The spring has a broad bearing and does not cause excessive wear.

For reciprocating the shuttle blade 36 a shuttle lever 41 is mounted in a slot 42 in the head and is fulcrumed on a screw-pin 43. The lever has a rounded head engaging snugl but freel in a slot 44 in the shuttle bar 2 At the orward edge of the slot 42 the lever is bent upwardl at such an angle as to conform to the inclination of the cutting blades. On the forward end of the lever is formed a rounded boss 45 engaging in a notch 46 in the rear portion of the shuttle blade. It is pointed out that the shuttle of the blade is short, being less than onequarter of an inch, and a considerable. advantage is had by disposing the shuttle bar in close proximlty to the shuttle blade, whereby a short lever ma be used which eliminates the tendency o a long lever to twist longitudinally and reduces the lost motion and side thrust.

The drive shaft 18 bein suitably driven and the wheels 22 and 23 eing thereby revolved, the shuttle bar 27 is reciprocated which oscillates the lever 41 and reciprocates the blade 36.- The rapidity of the reciprocation of the shuttle blade depends upon the R. P, M. of the shaft 18. The handle 11 being offset from the bottom of the head enables the barber to coil three fingers around the handle so that the knuckles do not project below the head 10 and interfere with the work. The caps 25 have their surclipper motors.

faces dished and are located so as to be conveniently engaged by the index finger and thumb; this with the handle hold makes for a comfortable, convenient and restful holding of the clipper, whereby the barber is enabled to more perfectly guide and control the clipper.

An important advantage is had from a heel roller 47 journaled at its ends in a hanger yoke 48 This roller may be of any suitable configuration, but I have obtained satisfactory results with a roller having spaced circumferential flanges 49 as is shown in the drawings. These flanges similate the teeth of a comb and when rolling over the hair, prevent lateral displacement of the clipper. The yoke has a square central shank 50 extending up into the head and recessed to receive a set screw 51. The screw permits the shank to be adjusted Vertically, whereby the yoke and roller may be raised or lowered with relation to the bottom of the head and the heel of the blade 34.

The yoke is curved forwardly, whereby the roller forms a support and a gauge as I the barbermay fulcrum the head 10 on the roller while moving the clipper over the hairof the customer, thus cutting in an arc. Further, the roller will steady the head and enable the cutting of the ends of long hairs as well as making for smoother work. While the heel roller is a valuable element it is not necessarily an essential one, and clippers otherwise constructed in accordance with my invention, but without the roller have been successfully used.

It is customary to drive clippers of this character with electric motors and while the shaft "18 may be driven by any suitable prime mover, it is shown with a slot 52 for receiving the end of a flexible shaft 53 such as is commonly now in use on electric hair In order that the handle 11 and shaft 18 may be coupled to any of the various sizes of flexible shafts with which my clipper may be used, I provide a universal coupling on the rear end of the handle which comprises an annular channel 54 having apertures through which small balls 55 pro ect into the bore of the sleeve. The apertures have diameters sufficiently less than balls to prevent the lat- I the balls engage,whereby the shaft is held in the handle and is easily removed and inserted. A collar 57 screwed on the ends of the handle surrounds the channel and conceals the spring ring. A' ring '58 is hinged to the top of the head 10, whereby the clipper ma be hung up when not in use.

no of the advantages of my structure and arrangement of arts isthat the lubrication is so efiected t at oil and grease'cannot leak out. I

Another advantage is that the device will be substantially noiseles in operation and the quiet running which results from this arrangement makes for a more efiicient performance. 1,

Various changes'in the size and shape of the different parts as, well as modifications and alterations may be made within the sco e of the appended claims.

atIclaim,is: 1

1. In a hair clipper, a tubular handle, a head secured to the handle and having its bottom offset an ample distance from the handle, a thumb grip on one side and a finger grip on the other side of the head, a cutter blade mounted on the bottom, a shuttle blade mounted in the headon the bottom blade, a drive shaft inthe handle, and

driving means for the shuttle blade connected with the driving shaft.

2. In a hair clipper, a tubular handle, a head secured to the handle and having its bottom ofl'set an ample distance from thehandle. a thumb grip on one side and a finger grip on the' other side of the head, a cutter blade mounted on the bottom, a shuttie blade mounted in the head on the bottom blade, a drive shaft on the handle, drivin means for the shuttle blade connected wit the driving shaft, a supporting roller at the bottom of the head.

3. In a hair clipper, a handle, a head ex tending radially from the handle and having a substantial portion of its bottom. incline upwardly and forwardly, theradial extension of the head being such as to space the bottom of the head a suflicient distance from the handle to accommodate the fingers behind the said head, means'forming anti-slip thumb and finger grips on opposite sides of said head, a fixed blade on the inclined portion of the bottom of the head, a shuttle blade mounted on the fixed blade under the head, an operating element within the. head for reciprocating the shuttle blade, and means in the head for actuating the operating element.

a. In a hair clipper, a handle, a head extending radially from the handle and having a substantial portion of its bottom inclined forwardly and upwardly, an immovable blade fastened on the inclined bottom portion of the head, a shuttle blade interposed between the immovable blade and the inclined portion of the head, a transmission rtion ofthe head, a drive shaft in the andle connected with said driving element, and means within the head for lmparting motion fi'om the driving member to the transmission element.

5. Ina hair cli per, a handle, a head extending radially m the handle and having a substantial portion of its bottom inclined upwardly and forwardly, the head being substantially solid and having a cavity.

in its upper portion and a transverse bore in its r'adi extension communicating with the cavity, an immovableblade fastened on the inclined portion of the bottom of the head, a shuttle blade disposed between the bottom of the head and the immovable blade, a shuttle bar 0 rating in the bore of the head, a lever lcrumed snugly in the head,

whereby oil is prevented from passing to the blades, said lever engaging the shuttle blade and the bar, and means in the cavity of the head for driving the shuttle bar. 7

6; In a hair cli per, a head, a handle extending from the cad, a worm in the head, a drive shaft in the handle connected with the worm, a worm wheel in the head driven.

by the worm, a cam wheel in the head driven by the worm wheel, a shuttle bar mounted in the head, a driving connection between the shuttle bar and the cam wheel, a stationary blade mounted on the bottom of the head, a shuttle blade mounted in the head on the stationary blade, an oscillating lever anounted an the head and} engaging the shuttle bar at one end, and the shuttle blade at the other end, and a tension means carried by the head and engaging the shuttle blade.

7. ln a hair clipper, a handle, a head extending radially from the handle, the head being substantially solid and having a cavity in its upper portion and a chamber in its lower portion for the reception of lubricants and operating fparts, an immovable blade on the bottom 0 the head, a shuttle blade mounted on the immovable blade, a short lever fulcrnmed in the lower portion of the head and extending from the shuttle blade into the chamber at the bottom of the head, the lever being fulcrumed snugly in the head, whereby the lubricant is retained in. the chamber and cavity of the head, and.

means operating in the cavity and chamber of the head for 0 rating the lever.

8. In a hair clipper, a head, a handle extending from the head, a worm in the head, a drive shaft in the handle connected with the worm, a worm wheel in the head driven by the worm, a cam wheel in the head driven by the worm wheel, a shuttle bar mounted in the head, a drivin connection between the shuttle bar and t e oam"wheel, a stationary blade mounted on the bottom of the head, a shuttle blade mounted in the head on the stationary blade, an oscillating lever mounted in the head and engaging the shuttle bar at one end and the shuttle blade at the other end, a tension means carried by the head and engaging the shuttle blade, and a flexible shaft coupling at the rear end of the sleeve. r

9. As a sub-combination in a hair' clipper, a handle, a head extending radiallyffrom the handle, the head having an inclined bottom portion, an inclined immovable blade on the inclined portion of the bottom of the head, and a supporting roller mounted on the head at the heel of the immovable blade, the major ortion of said roller being normally confines above the under surface of the immovable blade.

'10. In a hair clipper, the combination with a handle, and a drive shaft mounted in the handle, of ,a head having an upper and a lower bore at right angles thereto with a chamber between the bores arallel to the lower bore, an inclined blade 'astened on the bottom of the head, a lip on the head overhanging the fixed blade, a shuttle blade mounted on the fixed blade under the. lip, tension means for the shuttle blade carried by the li a worm in the upper bore connected with the drive shaft, a worm wheel in the chamber meshing withthe worm, a cam wheel in the chamber driven by the worm wheel, a shuttle bar in the lower bore driven by the cam wheel, and an oscillating lever mounted in the head having one end engaged in the shuttle bar and the other 40 end engaged with the shuttle blade.

11. As a sub-combination in a hair clipper, a handle, a head extending radially from the handle, the head having an inclined bottom portion, an inclined immovable blade on the inclined portion of the bottom of thehead, and a supporting roller mounted on the head and being'ad'ustable across the plane defined by the un er surface of the immovable blade.

12. As a sub-combination in a hair clipper, a handle, a head, an immovable cutter blade, a shuttle .blade mounted on the im- SIDNEY P. JONES. 

